a="  TCP    192.168.2.105:55555    182.247.237.229:443    ESTABLISHED     9140"
def window_find_pid2(str_):
    set_=set()
    dct=self.window_find_pid1(str_)
    while 1:
        if dct['pid']!='':
            set_.add(dct['pid']) 
            str_=str_[dct['end_idx']:]
            dct=self.window_find_pid1(str_)
        else:
            break
    return set_